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Preferred Furnace Repair in North Myrtle Beach

Get A Free Second Opinion with MCC

Furnace Repair Service
in North Myrtle Beach

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(843) 894-3202
Experience expert furnace repairs and services from the preferred professionals in North Myrtle Beach. We keep your comfort our priority.
A visual guide to the combustion and airflow system. We check every safety-critical component outlined above.
A visual guide to the combustion and airflow system. We check every safety-critical component outlined above.

Montgomery's Coastal Cool 5-Point Furnace Life Safety Check


When your furnace stops working in North Myrtle Beach, the issue is often more than just a broken part—it's a potential life safety hazard due to the combustion process. Unlike contractors who prioritize a quick fix, MCC technicians adhere to a non-negotiable protocol.
Our proprietary 5-Point Furnace Life Safety Check is included with every diagnostic call, focusing on the system components that keep your family safe:

1) Carbon Monoxide (CO) Testing: We utilize specialized electronic CO detectors to check the air surrounding the furnace and in the supply plenum. This step is the most critical; if CO is present, we shut down the unit immediately.
2) Heat Exchanger Integrity: A cracked heat exchanger is the primary cause of CO leaks. We use advanced diagnostic tools (detailed in Section 4) to ensure the combustion chamber is fully sealed.
3) Venting and Flue Pipe Inspection: Due to coastal salt air corrosion, the metal venting systems in NMB degrade faster. We inspect the entire flue pipe system for pitting, rust, or blockages that could prevent combustion gases from escaping.
4) Draft Inducer Motor Function: We verify the motor responsible for pulling toxic gases out of the furnace is operating at the correct RPM and that the pressure switch is functioning properly.
5) Gas Valve and Pilot/Igniter Logic: We confirm that gas flow starts and stops precisely when instructed by the thermostat, eliminating the risk of gas leaks or improper ignition sequences.
(843) 698-2739
Cracked heater exchange in north myrtle beach
How a cracked heat exchanger allows Carbon Monoxide (CO) to mix with the clean air supply, a fatal risk we test for on every call.

Heat Exchanger Integrity: Our Non-Negotiable Safety Standard

The heat exchanger is the barrier between the toxic combustion gases (like Carbon Monoxide) and the clean, breathable air that is delivered into your North Myrtle Beach home. Over time, the constant heating and cooling, combined with coastal rust and corrosion, can cause microscopic cracks.
 

Our Trustworthiness Standard: We Don't Just Look—We Test.

Most contractors attempt a visual check with a flashlight, but a crack often only opens up when the unit is running hot. This is an unacceptable risk.
 

The Combustion Analyzer Test

At Montgomery's Coastal Cool, we use a sophisticated Combustion Analyzer—the gold standard in the industry.

1) How it Works: The analyzer is inserted into the flue or test ports while the furnace is running. It actively measures the ratio of oxygen, carbon dioxide, and, most importantly, parts per million (PPM) of Carbon Monoxide in the flue gas.

2) The Diagnosis: If the analyzer detects CO leaking into the exhaust (or high levels of CO in the air stream), we have absolute, verifiable evidence of a failed heat exchanger.

3) Our Commitment: This is not a sales tactic. If a heat exchanger is cracked and leaking CO, we will not, under any circumstances, attempt a repair. The furnace must be shut down and replaced immediately to protect your life.
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Common Furnace Failures We Fix in North Myrtle Beach

A furnace breakdown often feels complex, but many issues we diagnose in the NMB area stem from just a few core problems, often exacerbated by the coastal environment. Our technicians are trained to pinpoint the root cause, not just replace the symptom.
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Component Failure Mode Coastal Link
Igniters & Flame Sensors Short-cycling or failure to light. High humidity and salt residue collect on the sensor/igniter surface, acting as an electrical insulator, preventing a reliable ignition sequence.
Blower Motors & Wheels Loud operation, restricted airflow, premature motor failure. Sand and salt-laden dust pulled in through the return air can pit bearings and blades, accelerating wear on the motor.
Limit Switches Overheating and repeated shutdowns (often happens quickly after starting). Salt-induced corrosion on electrical contacts and poor airflow due to restricted ductwork (often caused by poor maintenance) triggers the safety limit.
Pressure Switches Unit doesn't start, often flashing an error code. Issues with the vent or flue pipe being partially blocked (due to insect nests or corrosion) are detected by this switch, which prevents the furnace from firing safely.

Transparent Advice: When to Repair Your Furnace vs. When to Upgrade

The goal of MCC is to be your trusted advisor, not just a service provider. The decision to repair or replace a furnace comes down to two factors: Safety (Non-negotiable) and Cost/Efficiency (Financial viability).
The Financial Threshold (The 50% Rule)
As a transparent industry guideline, we advise homeowners to consider replacement if the cost of the repair exceeds 50% of the cost of a new, comparable unit. If your furnace is over 15 years old and needs a major repair (like a new control board or blower motor), the money is almost always better invested in a new, high-efficiency system.
The AFUE Efficiency Guide
Furnace efficiency is measured by AFUE (Annual Fuel Utilization Efficiency). Replacing an older, low-efficiency furnace saves you money every month, especially during peak use in North Myrtle Beach winters.
 
Learn More About AFUE

The Non-Negotiable Safety Trigger

As detailed above, a cracked heat exchanger requires immediate system shut down and replacement. No amount of repair can mitigate the lethal risk of Carbon Monoxide poisoning. We adhere to the highest safety standard, prioritizing your life over a temporary fix.
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North Myrtle Beach Furnace Specialists

The critical safety standards and the technical challenges of furnace repair in North Myrtle Beach is delivered by the professional and expert people who show up at your door: our technicians.
 
SC Licensed and Fully Insured
Expertise starts with legality and accountability. We don't just "have" a license; we operate under strict state regulations that protect you.
  • South Carolina Mechanical Contractor License #115583: This state license is proof that MCC is qualified, bonded, and accountable to the highest regulatory standards.
  • Fully Insured and Bonded: We carry comprehensive liability insurance, meaning you assume zero financial risk when our team is working inside your North Myrtle Beach home.

Advanced Training and Specialized Tools

Since we do not rely on a single third-party certification, we mandate continuous, specialized training that is directly relevant to your system's technology and local coastal safety requirements:
  • Manufacturer-Specific Training: Our team undergoes annual training directly from major manufacturers (e.g., Trane, Carrier, Lennox) focusing on the combustion systems, gas valves, and control boards prevalent in the Horry County area.
  • Combustion Analysis Mastery: Every technician is thoroughly trained and tested in the safe and accurate operation of the Combustion Analyzer. This ensures the mandatory safety inspection of your heat exchanger (Section 4) is performed by a qualified specialist.

Quick FAQ for North Myrtle Beach Homeowners

How often should I get furnace maintenance in North Myrtle Beach?

For gas furnaces, we recommend annual maintenance, ideally in the fall. In the coastal climate, this service must include a specific flue pipe and heat exchanger safety inspection due to salt corrosion risks.

How can I verify your South Carolina Mechanical Contractor License?

Our South Carolina Mechanical Contractor License number is #115583. You can verify the status of this license anytime by searching the South Carolina Department of Labor, Licensing, and Regulation (LLR) online database.

What does AFUE mean and why is it important when considering a replacement?

AFUE stands for Annual Fuel Utilization Efficiency. It is the percentage of fuel your furnace converts into usable heat. An 80% AFUE furnace wastes 20% of the fuel you pay for. We use this metric to show you the long-term energy savings of upgrading to a high-efficiency unit.

Do you offer 24/7 emergency furnace repair service in the NMB area?

Yes. Due to the inherent safety risks of a furnace malfunction, we offer 24/7 emergency repair services throughout North Myrtle Beach and surrounding Horry County. Call us immediately at (843) 894-3202